Dual channel 1000Base-SX/LX PMC Fiber Adaptor
July 2009 – Concurrent Technologies announces the latest addition to their range of networking PMC mezzanine cards - the CL PMC/GB4 - a two channel optical fiber adaptor supporting dual SFP connectors with board options for 1000Base-SX Multi-Mode or 1000Base-LX Single-Mode fiber interfaces. Commercial and extended temperature versions are available. The board will be particularly suitable for defense or industrial applications requiring a high level of noise immunity and higher data throughput whilst maintaining a wider separation of network nodes.
The CL PMC/GB4 provides high speed networking through the Intel® 82546GB Gigabit Ethernet controller, providing individual MAC and frame controllers supporting 64Kbyte Tx/Rx FIFO ports, along with IP, TCP and UDP checksum off-loading. Supporting 1000Base-SX over 850nm Multi-Mode fiber connections or 1000Base-LX over 1310nm Single-Mode fiber connections the adaptor’s physical connection to a network is via industry standard SFP transceiver modules. By using SFP connectors the CL PMC/GB4 provides the user with the flexibility to choose the most appropriate standard fiber or copper transceiver modules for their particular application.
The CL PMC/GB4 is a single-size card and is compliant with the CMC (Common Mezzanine Card) specification. The adaptor complies with the PCI specification, features 3.3 or 5 Volt signaling and 32-bit or 64-bit transfers, can operate at PCI-33/PCI-66 or up to PCI-X 133, and includes bus master capability. The adaptor does not require an onboard PCI bridge as the Intel 82546GB is a dual channel controller that connects straight to the host board’s PCI bus. A 512Kbyte BIOS EPROM is supported in a 32-pin PLCC JEDEC socket and includes PXE firmware.
This board can be used with Concurrent Technologies' CompactPCI®, VME, VXS host boards or any other PMC compliant host board. Integration is simplified due to the Intel® 82546GB Gigabit Ethernet controller being well supported by today’s operating systems.